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Kauai County, HI Right to Farm: Agricultural Zoning Protection (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Base density
1 dwelling unit per acre
Max density per parcel
5 dwelling units
Non-residential height cap
50 feet, § 8-8.2(a)(1)
Minimum lot width
150 feet, § 8-8.3(e)
Boundary review cycle
Every 5 years, § 8-8.3(d)
Enforcing agency
Kaua'i Planning Department

Summary

Kaua'i County's Agriculture District zoning protects farmland from residential and urban encroachment by limiting dwelling density to one unit per acre, capping non-residential building height at 50 feet, and restricting subdivision of agricultural parcels to preserve land for farming.

These county ordinances apply to unincorporated areas of Kauai County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

The Agriculture District establishes means by which land needs for existing and potential agriculture can be both protected and accommodated, while providing the opportunity for a wider range of the population to become involved in agriculture by allowing the creation of a reasonable supply of various sized parcels. ... To limit and control the dispersal of residential and urban use within agriculture lands. ... (a) Subject to the density, parcel and other requirements of Sec. 8-8.3 and Subsection (c), the development standards applicable in an Agriculture District shall be the same as those established in Secs. 8-4.3 and 8-4.5 of this Chapter, except that: (1) The maximum height of any building, other than one intended primarily for residential use, shall be 50 feet. ... (1) One dwelling unit for each parcel one acre or larger. (2) One additional dwelling unit for each additional three acres in the same parcel, provided that no more than five dwelling units may be developed on any one parcel.

Full Breakdown

Article 8 of the Kaua'i County Code 1987 Comprehensive Zoning Ordinance establishes the Agriculture District (A) specifically 'to protect the agriculture potential of lands within the County of Kaua'i to insure a resource base adequate to meet the needs and activities of the present and future' and 'to limit and control the dispersal of residential and urban use within agriculture lands,' under § 8-8.1. Section 8-8.2(a) applies the same development standards used in Residential Districts under §§ 8-4.3 and 8-4.5, except that non-residential buildings in the Agriculture District may rise to 50 feet, well above the 20-to-30-foot residential limit.

Residential density is capped separately: § 8-8.2(c) allows one dwelling unit for each parcel of one acre or larger, plus one additional unit for each additional three acres in the same parcel, up to a maximum of five dwelling units on any single parcel. Section 8-8.3 layers on subdivision limits meant to keep agricultural parcels farmable: land in common ownership before September 1, 1972 can be split only under a sliding scale, for example a 10-to-20-acre parcel may be divided into lots no smaller than two acres, and any parcel over 300 acres has most of its acreage barred from subdivision entirely.

Minimum lot width in the Agriculture District is 150 feet, and no lot may be more than four times as long as it is wide, under § 8-8.3(e).

Violations & Fines

Subdividing or developing Agriculture District land in violation of §§ 8-8.2 or 8-8.3 is a misdemeanor under § 8-3.5(a)(3), carrying a fine up to $2,000, with each day of the violation a separate offense. The Planning Director may also pursue civil enforcement under § 8-3.5(b), with civil fines up to $10,000 plus up to $10,000 per day the violation continues, plus a lien against the property.

Frequently Asked Questions

What is the purpose of Kaua'i's Agriculture District zoning?
Section 8-8.1 states the Agriculture District exists to protect the agriculture potential of County lands for present and future needs and to limit and control the dispersal of residential and urban use within agriculture lands, while still allowing a reasonable supply of variously sized farm parcels.
How many houses can I build on agricultural land on Kaua'i?
Section 8-8.2(c) allows one dwelling unit for each parcel of one acre or larger, plus one more unit for each additional three acres on that parcel, capped at five dwelling units on any single parcel regardless of its total size.
Can I subdivide my agricultural parcel on Kaua'i?
It follows a sliding scale under § 8-8.3(b): a 10-to-20-acre parcel can be divided into lots no smaller than two acres, and parcels over 300 acres have most of their acreage barred from further subdivision, with a 150-foot minimum lot width under § 8-8.3(e).

Sources & Official References

Other rules in Kauai County

All Kauai County rules

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